Appliance for hot-water heating systems.



E. w. EVANS.

APPLIANCE [0R HOT WATER HEATING SYSTEMS. APPLICATION FILED MAY 23.19l6- RENEWED OCT. 8.1917.

1,243,097. Patented. Nov. 20, 191?.

v 2 SHEETS-SHEET I- E. W. EVANS.

APPLIANCE FOR HOT WATER HEATING SYSTEMS. APPLICATION mm) MAY 23, 1916- nzugwsn OCT. 8. 1911.

Patented Nov. 20, 1917.

ZSHEETS-SHEET 2- r si'rnrns Pars r orries rare t E ens 9 eeela e t lemma emierqe r e HQ'P'WATER. Hsesme i ters tateete New 510. 9, .9 .1.

Application filed May 23, 1916 Serial No. 99,379. Renewed October 8, 1917. Serial No. 195,4 58

T 0. all whom it may cancema a citizen of the United States, residing. at Robinson. in the county of Crawford and State of Illinois, have invented certain new and useful Improvements in Appliances for Hot-\Vater Heating Systems, of which the following is a specification.

This invention has as its object to provide an appliance for installation in hot water heating systems of the gravity type for the purpose of rendering such systems more effective generally.

The appliance embodying the present 1nvention is designed to quicken the ClIZCUliI? tion in the system and to increase the heating capacity of the system. The presence of the appliance in a hot water heating system results in an increase in pressure in the system which produces increasedcirculation.

and therefore renders the system equally as efficient as a steam heating system so far as range of temperature is concerned.

The invention also aims to provide an appliance for the purpose stated above which will remedy existing defects i a system of the class mentioned above. such for'example as insufficient radiation. sluggish circulation, boiling of the water from quiclg firing, etc.

Another aim of the invention is to so construct the appliance that the same will be entirely automatic and in view of the hene ficial results secured by its use, will eventually lessen the cost of installation of the hot water heating'system of which it con: stitutesapart. I

In the accompanying drawings:

Figure 1 is aview elevation of the device embodying the present invention'and the hot water heating system in which installed.

i Fig. 2 is a perspective view of the appliance.

Fig. 3 is a vertical longitndinal sectional View therethrongh.

e is a ntal sect eael new 9 the 1 ine4.-4 of Fig.3. i i

In s-1 f th tr-ated an ord nary hot water heat ngsys;

tem of which the boiler is indicated by-the reference character Afoiie "of the radiators by t re e e cha er 2 the eras Pipe r b eferen e r e Q'a-nd he expansion tank th g I D; this tank being, as is usual, located a suitleg 9.

drawings there-is illusg vi jrence character able distance above the level of the highest radiator of the system. i i

lhe appliance. embodying the present in; vention comprises a casing indicated in gen-' eral by the reference. numeral l and comprises a top 2, sides 3, and end walls 4 and 5., the casing being provided at its end at which the wall 4 is located, with a water The casing isalso provided with a bottom 7 and in its end wall 5 aboveits said bottom with an opening 8 to receive a section of the expansionpipe C of the system. 'In a like manner the end wall 4 of: the casing is provided with an opening 9 re.- ceiving the end of the other section of the pipe C, the first mentioned section leading from the bo ler and the last mentioned sec tion leading from the casing '1 to the ex: pansion tank D, as clearly shown in Fig. 1 of the drawings. The casing is provided in teriorly with partitions IO'which extend befrom the bottom?- at an angle inclined to? ward the end wall 5 of the casing. The up per ends of the partitions 1'0 terminate a short distance below the plane-of the top 2- of the casing and the said top of the casing is provided with partitionsll which extend downwardly therefrom and between the side walls 3 of the casing andeach terminate at their lower edges ashort distance above the plane of the bottom 7 of the casing,- each'of the partitions 11 extending between two ad.- jacent ones of the partitions 1t) as shown in FigsB and 4 and the said partitions 11 be- 111g inclined downwardly the direction of the said end wall 5 of the casing. I Thetop 2 of the casing is also provided with depend: ing partitions 12 which are relatively short and extend between the sides 3'and these partitions are inclined downwardly in the direction of the end wall 4 of the casing and each faces the upper portion of detector the respective partition 10 which is presented toward the end wall 4 ofthe' casing, the partitions 1 -2 being"suitably-spaced.

from. the said 'upper portions'fof the part1; tions 19, in the inannerfshowif in Fig' "3.

The niimeral13 indicates'aba'fiie pairtitioii' which is integral with the'iniier'isurface 'of the 'wall 501" the casing andthispartitiog inclined dowhwartlly tew'ard holie casing is formed w th no I a baille partition 14 which is inclined downwardly toward the bottom of the casing and which is located opposite the upper side of the opening 9 and extends part way across the water leg 6.

For a purpose to be presently explained, a bypass pipe 15 is mounted upon one side or the casing near the bottom thereof and opens at its ends into the said casing, one end of the pipe communicating with the cas ing between the end wall 5 and the next adjacent partition 10 and below the battle partition 13, and the other end of the pipe communicating with the casing between the end wall 4 and the next adjacent partition 10 and substantially opposite the lower edge of the battle partition 14. interposed in the pipe 15 is a check valve indicated in general by the numeral 16.

From the foregoing description of the invention it will be understood that when the system is initially filled with water, water entering the casing 1 will first fill the space between the end wall 5 and the partition 10 next adjacent thereto and will then flow over the upper edge of this partition into the space between the said partition and the next adjacent partition 10 and as the water level rises between these partitions and reaches the lower edge of that one of the partitions 11 which extends therebetween, the air in the space between the end wall 5 and the said partition 11 will be trapped and in a like manner air will be trapped between the first mentioned partition 11 and the other one of the partitions l1 and also between the lastmentioned partition 11 and the end wall l oi. the casin The presence of the appliance in the system results in the water being subjected to a pressure of from seven to ten pounds per square inch and it will be understood that upon increase in pressure above the degree stated, a certain volume of the water within the casing 1 will be caused to pass beneath the lower edges of the partitions 11 and over the upper edges of the partition 10 and into the expansion tank D by way of the pipeC. When the system is put out of operation or requires an additional volume of water the water will flow from the tank D down through the pipe C and through the pipe 15 and past the valve 16 from the right hand to the left hand end of the casing 1. It will be understood, however, that water cannot pass through the pipe 15 in the opposite direction. It will be understood, of course, that the partitions 12 serve to prevent the trapped air being blown out from the casing of the appliance.

It will also be understood that in freezing Weather there will be no danger of the pipes of the systemin which the invention is installed, bursting due to freezing of the Water in the expansion tank inasmuch. as

even if the water does freeze in this tank the trapped air in the casing of the appliance will. serve as a cushion to equalize the expansive force of the water.

\Vhere relatively great radiation is required the pressure in the system may be increased by increasing the number of partitions 10, 11 and 12.

It will be understood that the appliance may be located on the same floor with and under the expansion tank equally as well as in the position illustrated in the drawings.

By inclining the partitions 10 and 11 in the manner shown in the drawings and hereinbetore described, the spaces within which the water rises are decreased in size toward the upper portion of the appliance and therefore a relatively high pressure is obtained with a less volume of water than if the pa rtitions were located in parallel planes.

Having thus described the invention, what is claimed as new is:

1. In an appliance of the class described, a casing having a water inlet at one side and a water outlet at the opposite side, partitions extending upwardly from the bottom of the said casing, partitions extending downwardly from the top of the said casing between the first mentioned partitions. and relatively short partitions extending downwardly from the top'of the casing and each located laterally opposite the upper end of one of the first mentioned partitions.

2. in an appliance of the class described, easing having a water inlet at one side and a water outlet at the opposite side, partitions extending upwardly from the bottom of the said casing, partitions extending downwardly from the top of the said casing, between the first mentioned partitions, and

battle partitions located substantially opposite the inlet and outlet of the casing.

3. an appliance of the class described a casing having a water inlet at one side and a water outlet at the opposite side. partitions extending upwardly from the bottom of the said casing and inclined upwardly toward one end wall thereof and terminat ing short of the top of the casing, and par titions extending downwardly from the top of the casing and inclined downwardly toward the said end wall of the casing and terminating short of the bottom of the casing.

4. In an appliance of the class described, a casing having a water inlet at one side and a water outlet at the opposite side, par= titions extending upwardly from the bot= tom of the said casing, partitions extending downwardly from the top of the said casing,

the partitions terminating respectively short of the top and bottom of the casing, and

located each relatively close tothe upper end of one of the first-mentioned partitions and opposite the same, the lower ends of the said baiile partitions terminating below the upper ends or" the said first-mentioned partitions.

5. In an appliance of the class described, a casing having a water inlet at one side and a water outlet at the opposite side, partitions extending upwardly from the bottom of the said casing, one of said partitions being located near the inlet side of the casing and another one of the partitions being located near the outlet side of the casin partitions extending downwardly from the top of the casing between the first-mentioned partitions, a baffle partition extending inwardly and downwardly from the inlet side of the casing substantially opposite the said inlet and terminating relatively close to the lower portion of the adjacent one of the first-mentioned partitions, and a bafile partition extending inwardly and downwardly from the outlet side of the casing and located substantially opposite the said outlet and terminating relatively close to the lower portion of the adjacent one of the first-mentioned partitions:

In testimony whereof I itffiX my signature.

ERNEST V. EVANS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

